Summary
Navistar, Inc. (Navistar) is recalling certain 2017-2020 IC Bus CESB school buses equipped with Cummins B6.7 diesel engines with fuel module option number FS90301 or FS90453. The electrical wiring within the fuel heater may overheat and may cause plastic in the fuel heater to melt and potentially catch fire. It may also lead to engine stalling.

RemedyCummins will notify the affected Navistar owners. A temporary field action will involve removing the fuse for the fuel heater and replacing any fuel heater found with signs of damage or fuel leakage with a temporary cavity plug. Customers will be renotified once Cummins determines a final remedy. The recall is expected to begin in April 2019. Owners may contact Cummins customer service at 1-800-286-6467 or Navistar customer service at 1-800-448-7825.

Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.